are there any known video problems in the Debian bookworm kernel?
by newbiesforever from LinuxQuestions.org on (#6FM4J)
My laptop--actually two completely different laptops--have for weeks shown a problem whereby the screen can't show anything but lines after I lift the lid. I can't see anything or know what I'm doing; can't Ctrl-Alt-Backspace out of the session, anything. The computer becomes effectively useless; I can't even shut it off (because I can never see anything) except by unplugging it with the battery removed. (I have no idea whether the system's actually frozen "behind" the broken video. I just need to see what I'm doing in order to shut down ;properly.)
I thought this was a problem in my usual distro, MX; but it obviously isn't, because it happens on two other Debian-based distros I tried, Mint and Devuan. So I wonder if it's the Debian bookworm kernel.
Both of my laptops are quite old, around 10-15 years. One is a ThinkPad T420. And this HP model that I have, whatever the model is even called...here is the inxi output on it.
Code:CPU: dual core Intel Celeron N4000 (-MCP-) speed/min/max: 995/800/2600 MHz
Kernel: 6.1.0-13-amd64 x86_64 Up: 30m Mem: 2168.6/3746.8 MiB (57.9%)
Storage: 465.76 GiB (7.2% used) Procs: 218 Shell: Bash inxi: 3.3.26I have found a solution: in the [power manager, make the system suspend when the lid is lowered, instead of turning off the display. It successfully awakes from suspension with normal video. It's only when "turn off display" is set that the video breaks.
I thought this was a problem in my usual distro, MX; but it obviously isn't, because it happens on two other Debian-based distros I tried, Mint and Devuan. So I wonder if it's the Debian bookworm kernel.
Both of my laptops are quite old, around 10-15 years. One is a ThinkPad T420. And this HP model that I have, whatever the model is even called...here is the inxi output on it.
Code:CPU: dual core Intel Celeron N4000 (-MCP-) speed/min/max: 995/800/2600 MHz
Kernel: 6.1.0-13-amd64 x86_64 Up: 30m Mem: 2168.6/3746.8 MiB (57.9%)
Storage: 465.76 GiB (7.2% used) Procs: 218 Shell: Bash inxi: 3.3.26I have found a solution: in the [power manager, make the system suspend when the lid is lowered, instead of turning off the display. It successfully awakes from suspension with normal video. It's only when "turn off display" is set that the video breaks.