Hi Pavel,
UPDATE: After rebooting my machine and restarting the VM it all of a sudden supported the resolution and uses now the native 5120 x 1440 DQHD resolution on my screen!!
So for Linux it is still needed to reboot te system for changes like that. I was not aware of that.
any way, your tip for changing the vgamem but not the other parameters really worked!
many thanks for your assistance!
kind regards,
On Wed, 2020年10月07日 at 22:02 +0200, odoggmts@xxxxxxxxxxx wrote:
Hi Pavel,thanks for your analysis and your time. Indeed I was also able to set the vgamem to 131072 without my Windows client crashing! That was good but the problem of the resolution to select remains. So I get a list like this:2560 x 14402560 x 16002560 x 16002800 x 21003200 x 24003840 x 21604096 x 2160but The resolution I want, 5120 x 1440 is not listed and auto resizing the VM only results in more black borders to the screen. So somehow I should inform the Red Hat QXL display controller to add that mode as a possiblity. In my Linux host I could do that by using Xrandr and add the resolution and the refresh rate. But in my Windows Client i do not see that option.many thanks for your efforts. I really appreciate it because the actual user feedback for Linux newbee's like myself is rather low.kind regards,On Tue, 2020年10月06日 at 13:46 +0200, Pavel Hrdina wrote:On Mon, Oct 05, 2020 at 08:28:11PM +0200, odoggmts@xxxxxxxxxxx wrote:Hi Pavel,sorry for my late reply. Thanks for your efforts and as matter of factI already increased the video memory in the XML file:<video> <model type='qxl' ram='262144' vram='262144'vgamem='65536' heads='1' primary='yes'/> <address type='pci'domain='0x0000' bus='0x00' slot='0x02'function='0x0'/> </video> <video> <model type='qxl'ram='65536' vram='65536' vgamem='16384' heads='1'/> <addresstype='pci' domain='0x0000' bus='0x00' slot='0x09'function='0x0'/> </video>As you can see I have two virtual monitors in the configurationfile.The above configuration is the highest one which works. I triedmore Ram (My video card has 4GB of Ram) but than my Win 10 instancejust does not boot (black screen). The problem with this resolution (inthe configuration above) is that it is listed as 4K but it does notallow the 5120 x 2560 resolutionkind regards,I tried to replicate your setup and on my Fedora 32 setting vgamem to131072 did the trick for me. You can keep the ram and vram at 262144 asthey don't affect the maximum resolution.Pavel