• Sick HTPC

    From pinnerite@pinnerite@gmail.com to alt.os.linux.mint on Tue Apr 14 21:08:34 2026
    From Newsgroup: alt.os.linux.mint

    (Sorry if you find this vverbose).

    I have an HTPC running on Linux Mint 21.3

    It shares a Widescreen TV (as a monitor) with broadcast and streamed TV.

    Whenever I switch back from TV to HDMI1 (that the HTPC uses), the sound
    icon on the panel will have disappeared usually fixed with a reboot.

    Yesterday on a reboot it hung. Nothing would overcome this.

    I have two kernels installed: 5.15.0_173 generic and 174.

    From the grub menu I can get into repair mode with either kernel.
    From there I can continue to "normal boot" but the resultant display is
    both wider and deeper than the screen and hides the panel.

    By opening Nemo I can "open as root" and then open a root terminal.
    Nemo however doesn't show either "File" nor can I see "Start", nor the
    use [X] at top right for closing any application I might be able to
    open.

    It would be nice to able to boot up normally if only to create a
    back up Mythtv's database and recordings before deconstructing this
    machine and rebuilding it with modern components, originally planned
    for later this year.

    I would welcome some ideas.

    Kind regards,

    Alan
    --
    Linux Mint 22.1 kernel version 6.8.0-84-generic Cinnamon 6.4.8
    AMD Ryzen 7 7700, Radeon RX 6600, 32GB DDR5, 2TB SSD, 2TB Barracuda
    --- Synchronet 3.21f-Linux NewsLink 1.2
  • From Paul@nospam@needed.invalid to alt.os.linux.mint on Wed Apr 15 06:43:46 2026
    From Newsgroup: alt.os.linux.mint

    On Tue, 4/14/2026 4:08 PM, pinnerite wrote:
    (Sorry if you find this vverbose).

    I have an HTPC running on Linux Mint 21.3

    It shares a Widescreen TV (as a monitor) with broadcast and streamed TV.

    Whenever I switch back from TV to HDMI1 (that the HTPC uses), the sound
    icon on the panel will have disappeared usually fixed with a reboot.

    Yesterday on a reboot it hung. Nothing would overcome this.

    I have two kernels installed: 5.15.0_173 generic and 174.

    From the grub menu I can get into repair mode with either kernel.
    From there I can continue to "normal boot" but the resultant display is
    both wider and deeper than the screen and hides the panel.

    By opening Nemo I can "open as root" and then open a root terminal.
    Nemo however doesn't show either "File" nor can I see "Start", nor the
    use [X] at top right for closing any application I might be able to
    open.

    It would be nice to able to boot up normally if only to create a
    back up Mythtv's database and recordings before deconstructing this
    machine and rebuilding it with modern components, originally planned
    for later this year.

    I would welcome some ideas.

    Kind regards,

    Alan


    "resume resume normal boot" <=== presumably what you selected, as seen here as an option

    https://unblog.ch/en/how-to-get-linux-mint-recovery-mode/

    It sounds like a display manager is not running, so the nemo windows
    is not "decorated". Nemo may be using the XYWH of a previous session,
    while the desktop is running at 640x480 or 800x600 sort of thing.

    When you don't have a display manager, you cannot bring a terminal
    to the front if it is behind the other window (nemo).

    It's possible the DKMS for your video card has expired (kernel version
    too new). This is just a wild guess on my part. It's the only
    thing I can think of, when it is likely the HTPC is running Xorg X11
    server.

    If the dialog boxes are too big, you can hold down the "alt" key and use
    the mouse to move the item as desired. One of my VMs was also busted when
    I went to use it, and to escape from the box I was in, required using
    the "alt" key trick.

    Depending on your video card, a newer video card may work. My 1080
    still has drivers, but they won't last forever. And the newer video cards aren't exactly "cheap". It's probably $400 here for a piece of crap.
    The iGPU can be used, and it might be a bit newer than the
    plugin video card. Only newer equipment has made iGPUs more
    plentiful. My 11 year old Test Machine, doesn't have an iGPU,
    but it does have 42 PCIe lanes.

    Paul
    --- Synchronet 3.21f-Linux NewsLink 1.2
  • From pinnerite@pinnerite@gmail.com to alt.os.linux.mint on Thu Apr 16 20:14:29 2026
    From Newsgroup: alt.os.linux.mint

    On Wed, 15 Apr 2026 06:43:46 -0400
    Paul <nospam@needed.invalid> wrote:

    On Tue, 4/14/2026 4:08 PM, pinnerite wrote:
    (Sorry if you find this vverbose).

    I have an HTPC running on Linux Mint 21.3

    It shares a Widescreen TV (as a monitor) with broadcast and streamed TV.

    Whenever I switch back from TV to HDMI1 (that the HTPC uses), the sound icon on the panel will have disappeared usually fixed with a reboot.

    Yesterday on a reboot it hung. Nothing would overcome this.

    I have two kernels installed: 5.15.0_173 generic and 174.

    From the grub menu I can get into repair mode with either kernel.
    From there I can continue to "normal boot" but the resultant display is both wider and deeper than the screen and hides the panel.

    By opening Nemo I can "open as root" and then open a root terminal.
    Nemo however doesn't show either "File" nor can I see "Start", nor the
    use [X] at top right for closing any application I might be able to
    open.

    It would be nice to able to boot up normally if only to create a
    back up Mythtv's database and recordings before deconstructing this
    machine and rebuilding it with modern components, originally planned
    for later this year.

    I would welcome some ideas.

    Kind regards,

    Alan


    "resume resume normal boot" <=== presumably what you selected, as seen here as an option

    https://unblog.ch/en/how-to-get-linux-mint-recovery-mode/

    It sounds like a display manager is not running, so the nemo windows
    is not "decorated". Nemo may be using the XYWH of a previous session,
    while the desktop is running at 640x480 or 800x600 sort of thing.

    When you don't have a display manager, you cannot bring a terminal
    to the front if it is behind the other window (nemo).

    It's possible the DKMS for your video card has expired (kernel version
    too new). This is just a wild guess on my part. It's the only
    thing I can think of, when it is likely the HTPC is running Xorg X11
    server.

    If the dialog boxes are too big, you can hold down the "alt" key and use
    the mouse to move the item as desired. One of my VMs was also busted when
    I went to use it, and to escape from the box I was in, required using
    the "alt" key trick.

    Depending on your video card, a newer video card may work. My 1080
    still has drivers, but they won't last forever. And the newer video cards aren't exactly "cheap". It's probably $400 here for a piece of crap.
    The iGPU can be used, and it might be a bit newer than the
    plugin video card. Only newer equipment has made iGPUs more
    plentiful. My 11 year old Test Machine, doesn't have an iGPU,
    but it does have 42 PCIe lanes.

    Paul

    Thanks Paul but I am using the onboard Intel graphics.
    I decided to disconnect the HDMI lead andplug a spare monitor that I
    bought for doing rebuilds. Altough I can only get into Cinnamon from
    Repair Mode, I do now get a full screen. Tomorrow I plan to take a
    backup of Mythconverg and will try and copy the resultant file and the recordings to a 1TB plug-in NVme ready for the rebuild I will bring
    forward.

    I have the processor but I will probably have to nick my wife's
    running-away money to finance the rest.

    Regards,
    Alan
    --
    Linux Mint 22.1 kernel version 6.8.0-84-generic Cinnamon 6.4.8
    AMD Ryzen 7 7700, Radeon RX 6600, 32GB DDR5, 2TB SSD, 2TB Barracuda
    --- Synchronet 3.21f-Linux NewsLink 1.2
  • From Paul@nospam@needed.invalid to alt.os.linux.mint on Thu Apr 16 17:08:00 2026
    From Newsgroup: alt.os.linux.mint

    On Thu, 4/16/2026 3:14 PM, pinnerite wrote:
    On Wed, 15 Apr 2026 06:43:46 -0400
    Paul <nospam@needed.invalid> wrote:

    On Tue, 4/14/2026 4:08 PM, pinnerite wrote:
    (Sorry if you find this vverbose).

    I have an HTPC running on Linux Mint 21.3

    It shares a Widescreen TV (as a monitor) with broadcast and streamed TV. >>>
    Whenever I switch back from TV to HDMI1 (that the HTPC uses), the sound
    icon on the panel will have disappeared usually fixed with a reboot.

    Yesterday on a reboot it hung. Nothing would overcome this.

    I have two kernels installed: 5.15.0_173 generic and 174.

    From the grub menu I can get into repair mode with either kernel.
    From there I can continue to "normal boot" but the resultant display is
    both wider and deeper than the screen and hides the panel.

    By opening Nemo I can "open as root" and then open a root terminal.
    Nemo however doesn't show either "File" nor can I see "Start", nor the
    use [X] at top right for closing any application I might be able to
    open.

    It would be nice to able to boot up normally if only to create a
    back up Mythtv's database and recordings before deconstructing this
    machine and rebuilding it with modern components, originally planned
    for later this year.

    I would welcome some ideas.

    Kind regards,

    Alan


    "resume resume normal boot" <=== presumably what you selected, as seen here as an option

    https://unblog.ch/en/how-to-get-linux-mint-recovery-mode/

    It sounds like a display manager is not running, so the nemo windows
    is not "decorated". Nemo may be using the XYWH of a previous session,
    while the desktop is running at 640x480 or 800x600 sort of thing.

    When you don't have a display manager, you cannot bring a terminal
    to the front if it is behind the other window (nemo).

    It's possible the DKMS for your video card has expired (kernel version
    too new). This is just a wild guess on my part. It's the only
    thing I can think of, when it is likely the HTPC is running Xorg X11
    server.

    If the dialog boxes are too big, you can hold down the "alt" key and use
    the mouse to move the item as desired. One of my VMs was also busted when
    I went to use it, and to escape from the box I was in, required using
    the "alt" key trick.

    Depending on your video card, a newer video card may work. My 1080
    still has drivers, but they won't last forever. And the newer video cards
    aren't exactly "cheap". It's probably $400 here for a piece of crap.
    The iGPU can be used, and it might be a bit newer than the
    plugin video card. Only newer equipment has made iGPUs more
    plentiful. My 11 year old Test Machine, doesn't have an iGPU,
    but it does have 42 PCIe lanes.

    Paul

    Thanks Paul but I am using the onboard Intel graphics.
    I decided to disconnect the HDMI lead andplug a spare monitor that I
    bought for doing rebuilds. Altough I can only get into Cinnamon from
    Repair Mode, I do now get a full screen. Tomorrow I plan to take a
    backup of Mythconverg and will try and copy the resultant file and the recordings to a 1TB plug-in NVme ready for the rebuild I will bring
    forward.

    I have the processor but I will probably have to nick my wife's
    running-away money to finance the rest.

    Regards,
    Alan


    Do you have any "similar" hardware you could use for test ?
    To test that the storage devices are OK. I just figured that
    some update session, pushed it over the edge.

    You could try one of the older kernels in Recovery Mode in
    the GRUB menu and see if that works.

    Paul

    --- Synchronet 3.21f-Linux NewsLink 1.2
  • From Mike Easter@MikeE@ster.invalid to alt.os.linux.mint on Thu Apr 16 22:58:19 2026
    From Newsgroup: alt.os.linux.mint

    pinnerite wrote:
    I will probably have to nick my wife's
    running-away money

    Ha.
    --
    Mike Easter
    --- Synchronet 3.21f-Linux NewsLink 1.2
  • From pinnerite@pinnerite@gmail.com to alt.os.linux.mint on Sat Apr 18 22:02:33 2026
    From Newsgroup: alt.os.linux.mint

    On Thu, 16 Apr 2026 17:08:00 -0400
    Paul <nospam@needed.invalid> wrote:

    On Thu, 4/16/2026 3:14 PM, pinnerite wrote:
    On Wed, 15 Apr 2026 06:43:46 -0400
    Paul <nospam@needed.invalid> wrote:

    On Tue, 4/14/2026 4:08 PM, pinnerite wrote:
    (Sorry if you find this vverbose).

    I have an HTPC running on Linux Mint 21.3

    It shares a Widescreen TV (as a monitor) with broadcast and streamed TV. >>>
    Whenever I switch back from TV to HDMI1 (that the HTPC uses), the sound >>> icon on the panel will have disappeared usually fixed with a reboot.

    Yesterday on a reboot it hung. Nothing would overcome this.

    I have two kernels installed: 5.15.0_173 generic and 174.

    From the grub menu I can get into repair mode with either kernel.
    From there I can continue to "normal boot" but the resultant display is >>> both wider and deeper than the screen and hides the panel.

    By opening Nemo I can "open as root" and then open a root terminal.
    Nemo however doesn't show either "File" nor can I see "Start", nor the >>> use [X] at top right for closing any application I might be able to
    open.

    It would be nice to able to boot up normally if only to create a
    back up Mythtv's database and recordings before deconstructing this
    machine and rebuilding it with modern components, originally planned
    for later this year.

    I would welcome some ideas.

    Kind regards,

    Alan


    "resume resume normal boot" <=== presumably what you selected, as seen here as an option

    https://unblog.ch/en/how-to-get-linux-mint-recovery-mode/

    It sounds like a display manager is not running, so the nemo windows
    is not "decorated". Nemo may be using the XYWH of a previous session,
    while the desktop is running at 640x480 or 800x600 sort of thing.

    When you don't have a display manager, you cannot bring a terminal
    to the front if it is behind the other window (nemo).

    It's possible the DKMS for your video card has expired (kernel version
    too new). This is just a wild guess on my part. It's the only
    thing I can think of, when it is likely the HTPC is running Xorg X11
    server.

    If the dialog boxes are too big, you can hold down the "alt" key and use >> the mouse to move the item as desired. One of my VMs was also busted when >> I went to use it, and to escape from the box I was in, required using
    the "alt" key trick.

    Depending on your video card, a newer video card may work. My 1080
    still has drivers, but they won't last forever. And the newer video cards >> aren't exactly "cheap". It's probably $400 here for a piece of crap.
    The iGPU can be used, and it might be a bit newer than the
    plugin video card. Only newer equipment has made iGPUs more
    plentiful. My 11 year old Test Machine, doesn't have an iGPU,
    but it does have 42 PCIe lanes.

    Paul

    Thanks Paul but I am using the onboard Intel graphics.
    I decided to disconnect the HDMI lead andplug a spare monitor that I
    bought for doing rebuilds. Altough I can only get into Cinnamon from
    Repair Mode, I do now get a full screen. Tomorrow I plan to take a
    backup of Mythconverg and will try and copy the resultant file and the recordings to a 1TB plug-in NVme ready for the rebuild I will bring forward.

    I have the processor but I will probably have to nick my wife's running-away money to finance the rest.

    Regards,
    Alan


    Do you have any "similar" hardware you could use for test ?
    To test that the storage devices are OK. I just figured that
    some update session, pushed it over the edge.

    You could try one of the older kernels in Recovery Mode in
    the GRUB menu and see if that works.

    Paul

    I got it going and it is stable right now.
    I have taken a backup to an external plugpin SSD!
    I have another question arising (seperate thread).

    By chance a new kernel was downloaded yesterday.
    That seems to have fixed it. 5.15.0-176 generic.
    ChatGPT turned its nose up at 174.

    Thanks for the suggestions.
    Alan
    --
    Linux Mint 22.1 kernel version 6.8.0-84-generic Cinnamon 6.4.8
    AMD Ryzen 7 7700, Radeon RX 6600, 32GB DDR5, 2TB SSD, 2TB Barracuda
    --- Synchronet 3.21f-Linux NewsLink 1.2
  • From pinnerite@pinnerite@gmail.com to alt.os.linux.mint on Sun Apr 19 21:44:46 2026
    From Newsgroup: alt.os.linux.mint

    On Sat, 18 Apr 2026 22:02:33 +0100
    pinnerite <pinnerite@gmail.com> wrote:

    On Thu, 16 Apr 2026 17:08:00 -0400
    Paul <nospam@needed.invalid> wrote:

    On Thu, 4/16/2026 3:14 PM, pinnerite wrote:
    On Wed, 15 Apr 2026 06:43:46 -0400
    Paul <nospam@needed.invalid> wrote:

    On Tue, 4/14/2026 4:08 PM, pinnerite wrote:
    (Sorry if you find this vverbose).

    I have an HTPC running on Linux Mint 21.3

    It shares a Widescreen TV (as a monitor) with broadcast and streamed TV.

    Whenever I switch back from TV to HDMI1 (that the HTPC uses), the sound >>> icon on the panel will have disappeared usually fixed with a reboot. >>>
    Yesterday on a reboot it hung. Nothing would overcome this.

    I have two kernels installed: 5.15.0_173 generic and 174.

    From the grub menu I can get into repair mode with either kernel.
    From there I can continue to "normal boot" but the resultant display is >>> both wider and deeper than the screen and hides the panel.

    By opening Nemo I can "open as root" and then open a root terminal.
    Nemo however doesn't show either "File" nor can I see "Start", nor the >>> use [X] at top right for closing any application I might be able to
    open.

    It would be nice to able to boot up normally if only to create a
    back up Mythtv's database and recordings before deconstructing this
    machine and rebuilding it with modern components, originally planned >>> for later this year.

    I would welcome some ideas.

    Kind regards,

    Alan


    "resume resume normal boot" <=== presumably what you selected, as seen here as an option

    https://unblog.ch/en/how-to-get-linux-mint-recovery-mode/

    It sounds like a display manager is not running, so the nemo windows
    is not "decorated". Nemo may be using the XYWH of a previous session,
    while the desktop is running at 640x480 or 800x600 sort of thing.

    When you don't have a display manager, you cannot bring a terminal
    to the front if it is behind the other window (nemo).

    It's possible the DKMS for your video card has expired (kernel version >> too new). This is just a wild guess on my part. It's the only
    thing I can think of, when it is likely the HTPC is running Xorg X11
    server.

    If the dialog boxes are too big, you can hold down the "alt" key and use >> the mouse to move the item as desired. One of my VMs was also busted when
    I went to use it, and to escape from the box I was in, required using
    the "alt" key trick.

    Depending on your video card, a newer video card may work. My 1080
    still has drivers, but they won't last forever. And the newer video cards
    aren't exactly "cheap". It's probably $400 here for a piece of crap.
    The iGPU can be used, and it might be a bit newer than the
    plugin video card. Only newer equipment has made iGPUs more
    plentiful. My 11 year old Test Machine, doesn't have an iGPU,
    but it does have 42 PCIe lanes.

    Paul

    Thanks Paul but I am using the onboard Intel graphics.
    I decided to disconnect the HDMI lead andplug a spare monitor that I bought for doing rebuilds. Altough I can only get into Cinnamon from Repair Mode, I do now get a full screen. Tomorrow I plan to take a
    backup of Mythconverg and will try and copy the resultant file and the recordings to a 1TB plug-in NVme ready for the rebuild I will bring forward.

    I have the processor but I will probably have to nick my wife's running-away money to finance the rest.

    Regards,
    Alan


    Do you have any "similar" hardware you could use for test ?
    To test that the storage devices are OK. I just figured that
    some update session, pushed it over the edge.

    You could try one of the older kernels in Recovery Mode in
    the GRUB menu and see if that works.

    Paul

    I got it going and it is stable right now.

    It is isn't. Despite the new kernel, the mouse cursor suddenly went
    slow and the MythTV couldfn't get live TV. A reboot fixed it. For a
    while. This has been going on for a fe years. I could nevedr pin down
    the cause. But is now pretty old so a rebuild is imminent.

    I have taken a backup to an external plugpin SSD!
    I have another question arising (seperate thread).

    By chance a new kernel was downloaded yesterday.
    That seems to have fixed it. 5.15.0-176 generic.
    ChatGPT turned its nose up at 174.

    Thanks for the suggestions.
    Alan

    --
    Linux Mint 22.1 kernel version 6.8.0-84-generic Cinnamon 6.4.8
    AMD Ryzen 7 7700, Radeon RX 6600, 32GB DDR5, 2TB SSD, 2TB Barracuda
    --- Synchronet 3.21f-Linux NewsLink 1.2
  • From Paul@nospam@needed.invalid to alt.os.linux.mint on Sun Apr 19 17:03:36 2026
    From Newsgroup: alt.os.linux.mint

    On Sun, 4/19/2026 4:44 PM, pinnerite wrote:


    It is isn't. Despite the new kernel, the mouse cursor suddenly went
    slow and the MythTV couldfn't get live TV. A reboot fixed it. For a
    while. This has been going on for a fe years. I could nevedr pin down
    the cause. But is now pretty old so a rebuild is imminent.

    Did you take a look at "top" ?

    There was one Promise brand chip, years ago, that could jam the
    interrupt line and any running OS would then rely on its interrupt
    limiter behavior, to have an CPU left to respond to any other activity
    on the machine. Not many hardware devices have had defects like that.
    Not all the Promise chips for that part number had the defect,
    so there might have been a timing element to the behavior.

    I don't know what tool would give a picture of interrupt activity.
    On Windows, using Process Explorer, there is a line labeled
    "Hardware Interrupts and DPCs", where a DPC is a Delay Procedure Call
    which is the Ring 3 portion of interrupt handling, while Ring 0
    is the Hardware Interrupt component. Minimal time is spent in the
    Hardware Interrupt, whereas the DPC execution time might be 10x longer
    as it is doing the actual service response (adding elements to a ring buffer
    or similar). You would have to look for the similar elements on
    Linux and what tool can read that portion out.

    There aren't too many cases in hardware, where the actual clock rate
    of the CPU was defective. There might have been a couple Dell laptops
    where that was going on. I would think something interrupt related
    (like an issue with the video card interrupts) is a more likely
    kind of scenario. Oh, yeah, the Dell one was called "ThrottleGate"
    because the clock would slow down, but it would not speed up
    later. The document prepared by the person suffering from the
    problem, was removed from the Internet, which is why you might
    have trouble finding the details of that.

    Paul
    --- Synchronet 3.21f-Linux NewsLink 1.2