Mhm, no idea why an interlaced resolution would cause a crash. Maybe some miscalculation in the display code.

But apart from that if you just connected your PC to a TV I also wouldn't recommend using an interlaced resolution in the first place.

See those resolutions only exists for backward compatibility with analog hardware.

I think we would just disable those modes instead of searching for the bug.

Regards,
Christian.

Am 30.03.21 um 11:07 schrieb Alberto Salvia Novella:
I guessed so.

The GPU is a Radeon HD5870, and the screen is an old Telefunken TV (TLFK22LEDPVR1).

Since my real display got into repair I used this TV meanwhile, and to my surprise it froze the system.

On Tue, 30 Mar 2021 at 10:15, Christian König <christian.koe...@amd.com <mailto:christian.koe...@amd.com>> wrote:

    Hi Alberto,

    well what hardware do you have?

    Interlaced resolutions are not used any more on modern hardware,
    so they
    are not well tested.

    Regards,
    Christian.

    Am 30.03.21 um 10:04 schrieb Alberto Salvia Novella:
    > The entire desktop hangs after some minutes when using the module
    > "radeon" with an interlaced resolution.
    >
    > Easier to trigger by playing a video on Firefox, at least on
    kwin_x11.
    > Wayland didn't exhibit the problem.
    >
    > Other display drivers, from different computers I have tried,
    didn't
    > allow those interlaced resolutions all together. It seems they know
    > there will be problems.


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